Water permeability concrete barrier board and preparation method thereof

Abstract

The present invention discloses a water permeability concrete barrier board and a preparation method thereof, and belongs to the field of hydraulic engineering and marine engineering. According to the water permeability concrete barrier board, the large doping amount fly ash cementing material or composite cementing material is adopted as the substrate, the nanometer bentonite modified potassium magnesium phosphate cement protection reinforcing steel bar or FRP bar is adopted as the reinforcement material, the reinforcing steel bar matching and protection surface parameter is calculated according to the used environment, and the water permeability concrete edge beam, the concrete floor protection plate and the water permeability concrete grid are subjected to cast-in-site and partial or whole precast so as to obtain the water permeability concrete barrier board, wherein the surface roughness is increased, and the water permeability effects of the communication hole between the edge beam and the internal of the grid is provided, such that the levee protection surface structure can be endowed with the water permeability energy dissipation, the maximum forward direction wave pressure intensity can be weakened, and the wave climb performance can be limited; and the 28 day compressive strength of the water permeability concrete of the water permeability concrete barrier board is more than 40 MPa, the levee top wave overtopping of the water permeability concrete barrier board is reduced by 15-25% compared with the ordinary barrier board, and the water permeability concrete barrier board can be used for the protection surface structure of the river bank, the sea bank and the training jetty of the sea bank, wherein the integrated precast barrier board can be reused.

Description

technical field [0001] The invention belongs to the field of hydraulic and marine engineering materials, is suitable for wave-absorbing structures of coasts, estuaries, and lake dams, and specifically relates to a permeable concrete fence board and a preparation method thereof. Background technique [0002] Wave impact is the main factor that endangers the safety of embankment and revetment along the river and coast, and sound wave dissipation and anti-scour facilities are an effective way to resist wave impact. The wave-absorbing structure can not only reduce the climbing height of waves, lower the elevation of the embankment crest or the elevation of the wave-resistant wall, but also reduce the impact of waves on the embankment body or shore body, which is beneficial to the safety of the project. Therefore, the dikes along the river and the coast, the breakwaters of ports and waterways, etc., all require controlling the elevation of the dikes and reducing the surge as much...

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Problems solved by technology

But at the same time, stability and strength problems are also hidden dangers, so the scope of application is limited

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